2024 Rio Open – Singles

Sebastián Báez defeated Mariano Navone in the final, 6–2, 6–1 to win the singles tennis title at the 2024 Rio Open. It was his fifth ATP Tour title and his first ATP 500 title. Navone was the second qualifier to contest the Rio Open final, following Gianluca Mager in 2020.

Cameron Norrie was the defending champion, but lost in the semifinals to Navone.

This marked the first time, in ten editions, that the tournament had three Brazilians in the quarterfinals.

Seeds
• #🇪🇸 Carlos Alcaraz (first round, retired)

• #🇬🇧 Cameron Norrie (semifinals)

• # Nicolás Jarry (first round)

• #🇦🇷 Francisco Cerúndolo (semifinals)

• #🇦🇷 Sebastián Báez (champion)

• #🇷🇸 Laslo Djere (second round)

• #🇫🇷 Arthur Fils (first round)

• #🇦🇹 Sebastian Ofner (first round)

Seeds
• # 🇮🇹 Luciano Darderi (first round)

• # 🇪🇸 Pedro Martínez (first round)

• # 🇦🇷 Thiago Agustín Tirante (first round)

• # 🇦🇷 Mariano Navone (qualified)

• # 🇦🇷 Francisco Comesaña (qualified)

• # Tomás Barrios Vera (moved to main draw)

• # 🇸🇰 Alex Molčan (first round)

• # 🇦🇷 Camilo Ugo Carabelli (first round, retired)

Qualifiers
• # 🇧🇷 Felipe Meligeni Alves

• # 🇫🇷 Corentin Moutet

• # 🇦🇷 Francisco Comesaña

• # 🇦🇷 Mariano Navone